How did the mythological concept of the Ouroboros influence ancient philosophical ideas about eternity and destruction?

The Ouroboros, a symbol depicting a serpent or dragon eating its own tail, is a powerful and ancient icon seen across various mythologies around the world. Emerging from Egyptian iconography, where it represented the sun's journey and rebirth, the Ouroboros was later adopted by the Greeks who integrated it into their mystical and philosophical doctrines. This symbol is also evident in Gnosticism and alchemy, representing the cyclical nature of time and the idea of eternal return. By examining the Ouroboros across these cultural and philosophical contexts, one can uncover how ancient civilizations perceived the duality of creation and annihilation, leading to profound discussions on immortality, continuity, and the transformative power of destruction.